I say about 15-20 grand a flight, but Im not sure that will be possible until they have at least 100 or so ships from different private companies up in space.
Its a whole new market, they are all going to compete sometime..

I call for 50 passenger suborbital shuttleplane fleet into Space & about 20 such planes worldwide by VirginGalactic or other.
This is doable.
PS: Note book High Frontier, written in 1975 by late Dr Gerald K O Niell for Space commerce roles.

When I made a journey to Ecuador nineteen years ago I had to pay around 1,800 German Marks for the tickets. I stayed four weeks there and had 700 $ available for living there, hotel and travels - 700 $ were less than 333 German Marks that year.

So let's say that I would pay 2,500 German Marks perhaps - a little bit more than 1,250 Euro.

But that tiem I just had my university diploma and no employment yet. So perhaps I would double up to 2,500 Euro perhaps - may be 3,000 Euro.

But we are talking about a suborbital flight - too much money for that not because of the adventure but in comparison to my income.